If i do DCA on stocks, doesnt it overall incur more cost due to each transaction fee incurred? If yes then why ppl still prefer dca?

U can DCA via RSP where broker offer minimal transaction fees like $1 for FSMONE, or 0.8% for DBS.
And many ppl do not comfortable or afford to buy lump sum. So DCA still a very popular choice.

Not necessarily a higher cost, DCA is quite commonly done through Regular Savings Plan (RSP). For example, POSB Investsaver charges 0.5% to 0.82% with no minimum, so there is no difference split up $1,000 to invest in 10 months or doing a lump sum.

Hi Anon, you can refer to a smilar thread here for your question, I've also commented there. Basically it's all about time in the market than timing the market.

https://seedly.sg/questions/why-do-people-do-dc...

Yes, it will incur more charges. If you do not want to incur so much charges, you can switch to investing every quaterly instead. People prefer DCA as it does not require timing the market. You can just invest a fixed sum of money every monthly without worrying too much about market prices.